

This is a common Delphi or C++Builder phenomenon.

After installing new component versions and compiling applications that have been build with previous component versions, property errors can be raised upon running the applications. files) are removed from your Delphi or C++Builder library path. The library path can be configured under menu Tools, Options, Library - Win32īefore installing component updates, make sure that ALL old version files (DCU, BPL, BPI, LIB, DCP, HPP, OBJ. Please make sure to set your Delphi library path correct that it includes the folder See menu Component, Install Packages in the IDE. Please make sure ALL packages that are used for the component for which the error appears are installed & active. Error: Class.not found (when opening a project) We hope this will be valuable information to quickly trace & solve the most common issues & mistakes with installing components. The issues typically originate from an incorrect IDE setup. This applies to TMS components as well as to any 3rd party VCL component. On this page, we have bundled the most frequently encountered issues with installing 3rd party components in general in Delphi or C++Builder.

